I took my brand new Sig Sauer P226R Elite (chambered for 9mm) to the range today
Did you clean it before you shot it?
My guess is probably not.
Not that I've never taken a new gun out of the box and right to the range.....
IIRC, I've probably done that w/every new gun I've ever bought...
Anyhow - things do seem to work better once the gun has been cleaned.